The Senate Sergeant at Arms security services was able to detect the attempted attack and prevent it before any damage occurred to the Senator’s site, according to Leslie Phillips, communications director for the Senate Homeland Security and Governmental Affairs Committee.

Year in Review 2010: "I Thought It Was Gum" & Other Notable Quotables

Visa and Mastercard recently stopped processing donations to the company. Their sites were offline for a period of time, but we're back up and running several hours later.The card companies insist no personal information was compromised.

“Many disgruntled 'hacktivists' will be seeking revenge on behalf of the whistle-blowing website and it is highly likely that this will be the first in a series of attacks on businesses such as Amazon, PayPal, Visa and Swiss Bank, all of which withdrew services to WikiLeaks over recent days,” Alan Bentley of Internet security company, Lumension, told the magazine.

Palin said her PAC site was compromised and an attack was attempted against Senator Lieberman’s personal office website.

Lieberman and Palin have both been outspoken in their criticism of Assange and his Wikileaks organization, and Lieberman contacted Amazon regarding the site hosting the WikiLeaks Web site.